        (tap (:offer-mult coordinator) offer-ch-spy)
        (tap (:ack-mult coordinator) ack-ch-spy)
        
-       (doseq [[peer pulse shutdown payload sync-spy]
+       (doseq [[peer pulse shutdown payload sync-spy seal-spy]
                (map vector peers pulses shutdowns payloads sync-spies)]
          (extensions/write-node sync (:node peer)
                                  {:id (:uuid peer)

                                         :payload-node (:node payload-node-b-2)})
                (extensions/on-change sync (:node payload-node-b-2) #(>!! sync-spy-b %))

                (extensions/touch-node sync (:node/completion (:nodes payload-a)))
                (extensions/touch-node sync (:node/completion (:nodes payload-b)))



                  (<!! ack-ch-spy)
                  (<!! status-spy)

                  (extensions/on-change sync (:node/seal nodes) #(>!! seal-spy-a %))
                  (extensions/touch-node sync (:node/exhaust nodes))
                  (<!! seal-spy-a)

                  (extensions/touch-node sync (:node/completion nodes))
                  (<!! offer-ch-spy))
